Substituted-2-alkoxycarbonyloxy benzoic acid anilides

ABSTRACT

Substituted 2-acyloxybenzoic acid anilides of the general formula   IN WHICH R1 is alkyl or alkoxy with up to 6 carbon atoms, R2 is lower alkyl, halo-lower alkyl, halo, nitro, lower alkyoxycarbonyloxy or lower acyloxy, R3 is hydrogen, lower alkyl, halo-lower alkyl, lower alkoxy, lower alkylmercapto, halo, nitro or lower alkoxycarbonyloxy, N IS 1, 2 OR 3, AND X is hydrogen and Y is nitro, or X is bromine or tertiary butyl and Y is chlorine or bromine, or X is chlorine and Y is chlorine or bromine, or hydrogen with R1 being alkoxy, WHICH POSSESS INSECTICIDAL AND ACARICIDAL PROPERTIES.

United States Patent 1191 Buchel et al.

[ 1 SUBSTITUTED-Z-ALKOXYCARBONYLOXY BENZOIC ACID ANILIDES [75] Inventors: Karl Heinz Biichel,

Wuppertul-Elberfeld; Ingeborg Hammann, Cologne. both of Germany [73] Assignee: Bayer Aktiengesellschaft,

Leverkusen, Germany 221 Filed: Apr. 20, 1972 211 Appl. No.: 246,011

[30] Foreign Application Priority Data Apr. 28, 1971 Germany 2120862 [521 US. Cl. 260/463; 260/479 R; 260/559 S; 424/301; 424/311 [51] Int. Cl. ..C07C 103/76; C07C 103/78; A01N 9/20 [58] Field of Search 260/463, 559 S [561 References Cited UNITED STATES PATENTS 2,476,559 7/1949 Nuwizisky ct ill 260/244 3,147,300 9/1964 Schraiifsuitter ct ail... 260/479 3,519,678 7/1970 Furrington 260/479 Primary E.\-mniner-Donz11d G. Daus Assislan! 1:.raminer-Dianz1 G. Rivers Attorney, Agent, or Firm-Burgess. Dinklage & Sprung 51 Sept. 16, 1975 [57] ABSTRACT Substituted 2-ucyloxybenzoic acid anilides of the general formula CO-NH (I in which R is alkyl or ulkoxy with up to 6 carbon atoms,

R is lower alkyl, halo lower alkyl, halo, nitro, lower ulkyoxycarbonyloxy or lower acyloxy,

R is hydrogen, lower ulkyl, hulo-l0wer zilkyl, lower alkoxy, lower ulkylmerczipto, halo, nitro or lower alkoxycarbonyloxy,

n is 1, 2 or 3, and

X is hydrogen and Y is nitro, or

X is bromine or tertiary butyl and Y is chlorine or bromine, or

X is chlorine and Y is chlorine or bromine, or

hydrogen with R being zilkoxy,

which possess insecticidal and ucarieidul properties.

6 Claims, No Drawings .1 v SUBSTITUTED-Z-ALKOXYCARBONYLOXY BENZOIC ACID ANILIDES The present invention relates to and has for its objects the provision of particular new substituted 2- acyloxybenzoic acid anilides, i.e: 2-acyloxybenzoic acid anilides substituted in the 3-position and in some instances in the 5-position as well as being substituted at least once on the aniline ring, which possess insecticidal and acaricidal properties, active compositions in the form of mixtures of such compounds with solid and liquid dispersible carrier vehicles, and methods for producing such compounds and for using such compounds in a new way especially for combating pests, e.g. insects and acarids, with other and'further objects becoming apparent from a study of the within specification and accompanying examples.

It is known from US. Pat. No. 3,079,297 and Zeitschrift fuer Naturforschung 16 b, 95 1961 that derivatives of Z-hydroxybenzoic acid anilides are effective in which R is alkyl or alkoxy with up to 6 carbon atoms, R is lower alkyl, halo-lower alkyl, halo. nitro, lower alkyoxycarbonyloxy or lower acyloxy, R is hydrogen, lower alkyl, halo-lower alkyl, lower alkoxy, lower alkylmercapto, halo, nitro or lower alkoxycarbonyloxy,

CO'-NH Br 0H cl-co-oca (III'a) nisl,2or3,and X is hydrogen and Y is nitro, or

X is bromine or tertiary butyl and Y is chlorine or bromine, or X is chlorine and Y is chlorine or bromine. or hydrogen with R being alkoxy. which exhibit insecticidal and acaricidal properties.

I ethoxycarbonyloxy.

The invention also provides a process for the production of a 2-acyloxybenzoic acid anilide of the formula (I) in which a 3,5-disubstituted 2-hydroxybenzoic acid anilide or salt thereof, known in the art, of the general formula: I I i V i CO-NH-@/ (11) Y 0M a in which X, Y, R R" and n have the meanings stated above,

and v I g M is hydrogen or an equivalent amount of acation especially an alkali metal, is reacted with an acid chloride of the formula:

(Ill) in which R has the meaning stated above, optionally in the presence of an acid-binderun'd optionally in the presence of a diluent.

Surprisingly, the 2-acyloxybenzoic acid anilides according to the invention show a considerably higher insecticidal and acaricidal activity'than the 4,5 '-dichloro- 2-hydroxy-3-p-chlorophenyl-benzoic acid anilide and 5,2, 4, 5tetrachloro-2-hydroxy-3-p-chlorophenylbenzoic acid anilide known from'the prior art which are the chemically closest active compounds of the same type of activity. The substances according to the invention therefore represent an enrichment of the art.

lf 3-brorno-5-chloro-3', 5'-bistrifltioromethyl-Z- hydroxy-benzoic acid anilide and chloroformic acid methyl ester are used as starting materials, the reaction course can be represented by the following formula scheme: 9

c1 id c1 CO-NH binder Br moo-0on When M is hydrogen the reaction is preferably car ried out in the presencc of inert, especially slightly polar. organic solvents or diluents. These include prefera bly hydrocarbons such as benzene, toluene or xylene; ethers such as diethyl ether and-dibutyl ether; chlorinated hydrocarbons such as chloroforom or carbon tetrachloride. The reaction of the salts takes place prefer- 3 ably in the presence of polar organic solvents or diluents such as ketones, c.g. acetone; ethers such as diox ane; alcohols such as methanol; nitriles such as acetonitrile; and the like. V A

As acid-binders, all customary acid-binding agents can be used. Particularly suitable are alkali metal hydroxides, such as potassium hydroxide or sodium hydroxide, alkali metal carbonates, such as sodium carbonate or potassium carbonate, alkaline earth metal carbonates, such as barium carbonate, and tertiary organic bases, such as trimethylamine or pyridine.

The carrying out of the process according to the invention is possible within a fairly wide temperature range. In general, the work is carried out at about 0C to 120C, preferably about 10C to 100C.

When carrying out the process according to the invention, for each mole of the compound of the formula ll)',there are used between about 1.2 and 1.5 moles of the compound of the formula (Ill) and, where appropriate, the equivalent amount of acid-binder, A further exceeding of the stoichiometric proportions brings no substantial improvement of yield. For isolation, filtration from the chloride formed is effected hot, the solvent is distilled off in a vacuum and the products concerned are purified by recrystallization.

As examples of the products according to the invention, there are mentioned in particular:

3 ,5-dibromo-3 ,5 -bistrifluoromethyl-Z-methoxycarbonyloxybenzoic acid anilide, 3-bromo-5,2dichloro-S-trifluoromethyl-2- propionyloxybenzoic acid anilide, 3,S-dibromo-Z',6'-diisopropyl-Z acetoXy-benZOic acid anilide, 3.5-dibromo-2',6'-diisopropyl-2-priopionyloxy- .benzoic acid anilide, v 3,Sdiehloro-Z',6-diisopropyI-Z-propionyloxybenzoic acid anilide. 3-bromo-5-chloro-3',5-bistrifluoromethyl-Z- acctoxy-benzoic acid anilide, 3 bromo-5chloro-3,5-bistrifluoromethyl-2- ,propionyloxybenzoic acid anilide, 3- bromo-5 ,3 '-dichloro-5 '-trifluoromethyl-Z-methoxycarbonylosybenzoic acid anilidc,

3-bromo-5 2 '-dichloro-5 -trifluoromcthyl-lacetmiy- V benzoic acid anilidc. 3,S-dihromo-Z'-chloro-5'-trifluoromcthyl-lmethoxycarbonyloxybenloic acid anilide, 3 5 2'-trichloro-5'-trifluoromethyl-2-propionyloxybenzoic acid anilide, 3.5-dibromo-2',6'-dimethyl-Z-methoxycarbonyloxybcnzoic acid anilidc. 3-bromo-5-chloro-2.6'diethy|-2cthoxycarbonyloxybenzoic acid anilide, 3,2',4',(i'-tetrabronui-5-tcrtiary-butyl-Z-methoxycarbonyloxybenzoic acid anilide. 3.5-dichloro-2,4,6'-trihromo-Z-methoxycarbonyloxy-henzoic acid anilidc.

3,3'.5-trichloro-2 -cthoxycarbonyloxy-bcnloic acid anilidc, 3.4',5-trichloro-I1-ethoxycarbonyloxy-benzoic acid anilidc. 3,3'55'-tctrachloro-4'-methylthio-Z-cthoxycarbonyloxy-hemoic acid anilidc. 3.4',5-tribromo-Z-cthoxycarbonyloxy-henzoic acid anilidc. 3,5-dibromo-2,3-dichloro-Z-ethoxycarbonyloxybenzoic acid anilide, 4-chloro-3-nitro-Z-ethoxycarbonyloxy-benzoic acid anilide,

.4 2,3,-3 5,5.-pentachloro-2,6'-hisethoxycarbonyloxybenzoicacidanilide, v 3 ,S-dibromo-Z ',4,'-dichloro-2-butoxycarbonyloxybenzoic acid anilide, v 3,5-dibromo-2,4-dichloro-2-is0butoxycarbonyloxybenzoic acid anilide, and 2,4,6-tribromo-3,5-dichloro-2-isobutoxycarbonyloXy-benzoic acid anilide. 1 v The Z-aeyloxybenzoic acid anilides according to the invention possess an outstanding, rapidly commencing and long-lasting insecticidal and acaricidal effectiveness. They are used with success in crop protection for the control ofnoxious sucking and biting insects and harmful mites.

To the sucking insects contemplated herein there belong, in the main, a'phids.-(Aphidae) such as the green peach aphid (Myzus persicac), the bean aphid (Doralis fubae), the bird cherry aphid (R/wpalosip/zum pudi the pea aphid (Muc'rosiplzum pisi) and the potato aphid (Mucrosipluun solamfolii), the currant gall-aphid (Crypmmyzus korschelti), the rosy apple aphid (Suppap/zis mall), the mealy plum aphid (Hyalupterus urundinis) and the cherry black-fly (Myzus cemsi); in addition, scales and mealybugs (Coccina), for example the oleander scale (Aspidiotus' liederue) and the soft scale '(Lecanium liesperidum) as well as the grape mealybug (Psemivcoc'c'us niarin'nuo'); thrips (Thysanoptera ),.such as H ercinothrips femoralis, and bugs, for example the beet bug (Piesmu quadram), the red cotton bug Dysdercus'inlermalius), the bed bug (Cimm' lectularius), the assassin bug (Rlwdnius pmlirus) and Chagas bug ('Iriammu ii fesluns) and. further, cicadas, such as [inst-011's [vi/01mins and Neplmletlix hipum'tutus; and the like.

In the case of the biting insects contemplated herein, above all there should be mentioned butterfly caterpillars (Lepidoptera) such as the diamond-back moth (Plural/u maculipwmis), the gypsy moth (Lymuntriu dispur), the brown-tail moth (Is-ziprkwtis (l1iaxs'm'r/zuea) and tent caterpillar (MUIUCUAOHIH neuslria); further. the cabbage moth (Mamas/m hrusxs'iz'ue) and the cutworm (Agmlis .vugetum the large white butterfly (P 'cris bras- .ncue), the small winter moth (C/ieimumhiu br m atu), the green oak tortrix moth (Turn-ix iiridurm), the fall armyworm (Lap/zygmu fiugipenlu) and cotton worm (lrudcniu liluru), the ermine moth (H \'p0n0meula pmle/lu), the Mediterranean flour moth (Ep/ias'tiu Kue/miellu) and greater wax moth (Galleria mellmwllu); and the like.

With the mites (Acari) contemplated herein there are classed, in particular, the spider mites (Tetranychidae) such as the tow-spotted spider mite (Tammy (has telurius TvIrunyc/ulx all/meat or T(N'(lIl \('/IHS mlit'uc) and the European red mite (ParuIcIrunyc/zus pilm ,vm- 1 m 1m \z-lm,v ulmi). gall mites. for example the black currant gall mite (liriup/tvav rihis) and tarsonemides, for example the broad mite (Hemimrsonenms Imus) and thc cyclamen mite ('Iluzwncmus pullizlux).

Particularly worthy of mention is the excellent effectiveness of the active compounds according to the invention against resistant strains of mites, for example against resistant 'l'etranychus species. as well as against soil insects and insect larvae.

The active compound according to the instant invention can be utilized, if desired, in the form of the usual formulations or compositions with conventional inert (i.e. plant compatible or herbicidally inert) pesti cidc dilucnts or extenders, i.c. diluents, carriers or ex tenders lot the type usable in conventional pesticide formulations or compositions, e.g. conventional pesticide dispersible carrier vehicles such as gases, solutions, emulsions, suspensions, emulsifiable concentrates, spray powders, pastes, soluble powders, dusting agents, granules, etc. These are prepared in known manner, for instance by extending the active compounds with con ventional pesticide dispersible liquid diluent carriers and/or dispersible solid carriers optionally with the use of carrier vehicle assistants, e.g. conventional pesticide surface-active agents, including emulsifying agents and/or dispersing agents, whereby, for example, in the case where water is used as diluent, organic solvents may be added as auxiliary solvents. The following may be chiefly considered for use as conventional carrier vehicles for this purpose: aerosol propellants which are gaseous at normal temperatures and pressures, such as freon; inert dispersible liquid diluent carriers, including inert organic solvents, such as aromatic hydrocarbons (e.g, benzene, toluene, xylenes, alkyl naphthalenes, etc.), halogenated, especially chlorinated, aromatic hydrocarbons (e.g. chlorobenzenes, etc.), paraffins (e.g. petroleum and mineral oil fractions), cyclohexane, chlorinated aliphatic hydrocarbons (e.g. methylene chloride, chloroethylenes, etc.), alcohols (e.g. methanol, ethanol, propanol, butanol, glycol,'etc.), ethers and esters of such alcohols (e.g. glycol monomethyl ether, etc.), amines (e.g. ethanolamine, etc.), amides (e.g. dimethyl formamide, etc.), sulfoxides (e.g. dimethyl sulfoxide, etc.), ketones (e.g. acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, etc. and/or water; as well as inert dispersible finely divided solid carriers, such as ground natural minerals (e.g, kaolins, clays, alumina, silica, chalk, i.e. calcium carbonate, talc, attapulgite, montmorillonite, kieselguhr, etc.) and ground synthetic minerals (e.g. highly dispersed silicic acid, silicates, e.g. alkali silicates, etc. whereas the following may be chiefly considered for use as conventional carrier vehicle assistants, egg. surface-active agents, for this purpose: emulsifying agents, such as non-ionic and/or anionic emulsifying agents (eg. polyethylene oxide esters of fatty acids, polyethylene oxide ethers of fatty alcohols, alkyl sulfates, alkyl sulfonates, aryl sulfonates, etc, and especially alkyl arylpolyglycol ethers, magnesium stearate, sodium oleate, etc.); and/or dispersing atents, such as lignin, sulfite waste liquors, methyl cellulose, etc.

Such active compounds may be employed alone or in the form of mixtures with one another and/or with such solid and/or liquid dispersible carrier vehicles and/or with other known compatible active agents, especially plant protection agents, such as other insecticides and acaricides, or fungicides, bactericides, nematocides, rodenticides, herbicides, fertilizers, growth-regulating agents, etc., if desired, or in the form of particular dosage preparations for specific application made therefrom, such as solutions, emulsions, supensions, pow ders, pastes, and granules which are thus ready for use.

As concerns commercially marketed preparations, these generally contemplate carrier composition mixtures in which the active compound is present in an amount substantially between about 0. 1-957r by weight,and preferably 05-90% by weight, of the mixture, whereas carrier composition mixtures suitable for direct application generally contemplate those in which the active compound is present in an amount substantially between about 0.0001-l07c, preferably 0.0l-l%, by weight of the mixture. Thus, the present invention contemplates over-all compositions which comprise mixtures of a conventional dispersible carrier vehicle such as (l) a dispersible inert finely divided carrier solid, and/or (2) a dispersible carrier liquid such as an inert organic solvent and/or water preferably including a surface-active effective amount of a carrier vehicle assistant, e.g. a surface-active agent, such as an emulsifying agent and/or a dispersing agent, and an amount of the active compound which is effective for the purpose in question and which is generally between about 0.000l%, and preferably 0.0l957z, by weight of the mixture.

The active compounds can also be used in accordance with the well known ultra-low-volume process with good success, i.e. by applying such compound if normally a liquid, or by applying a liquid composition containing the same, via very effective atomizing equipment, in finely divided form, e.g. average particle diameter of from-5O to microns, or even less, i.e. mist form, for example by airplane crop spraying techniques. Only up to at most about a few liters/hectare are needed, and often amounts only up to about 15 to 1000 g/hectare, preferably 40 to 600 g/hectare, are sufficient. In this process it is possible to use highly concentrated liquid compositions with said liquid carrier vehicles containing from about 20 to about 95% by weight of the active compound or even the 10 071 active substance alone, e.g. about 204007: by weight of the active compound. I

Furthermore, the present invention contemplates methods of selectively kil ling ,combating or controlling pests, e.g. insects and acarids, which comprises applying to at least one of correspondingly (a) such insects, (b) such acarids, (c) the corresponding habitat thereof. i.e. the locus to be protected, a correspondingly combative or toxic amount, i.e. an insecticidally or acaricidally effective amount, of the particular active com pound of the invention aloneor together with a carrier vehicle as noted abovev The instant formulations or compositions are applied in the usual manner, for instance by spraying, atomizing, vaporizing, scattering, dusting, watering, squirting, sprinkling, pouring, fumigating, and the like.

It will be realized, of course, that the concentration of the particular active compound utilized in admixture with the carrier vehicle will depend upon the intended application. Therefore, in special cases it is possible to go above or below the aforementioned concentration ranges.

The preparation and unexpected superiority and outstanding activity of the particular new compounds of the present invention are illustrated, without limitation, by the following examples.

EXAMPLE I a. Preparation of the starting product:

Cl CF CO-NH Br OH CF tered. The precipitate formed during cooling is filtered 7 off with suction and washed with petroleum ether. 78 g (87.5% of theory) of 3-bromo-5-chloro-3 ',5'-bistrifluoromethyl2-hydroxy-benzoic acid anilide are obtained as slightly yellow crystals of the melting point 167C.

b. To a solution of 20 g (0.043 mole) of 3-bromo-5- chloro-3 ',5 '-bistrifluoromethyl-2-hydroxy-benzoic acid anilide in 400 ml of anhydrous benzene there are added 3.5 g (0.04 mole) of pyridine. Thereafter, a solution of 6.2 g (0.065 mole) of chloroformic acid methyl ester in 50 ml of anhydrous benzene is slowly added dropwise at a temperature of 20 to 28C. The reaction mixture, after 16 hours heating to 35C, is cooled to room temperature and the solvent is distilled off in a vacuum. The oily residue obtained is rubbed with methanol. A solid substance forms which is recrystallized from 300 ml of methanol. 12 g (54% of theory) of 3-bromo-5- chloro-3 ,5 -bis-trifluoromethyl-2-methyoxyearbonyloxy-benzoic acid anilide are obtained as colorless crystals of the melting point 1 323 3C and the formula r CF3 C0-OC115 EXAMPLE 2 a. Preparation of the starting product:

01 CF Q-CO-NH-Q Br 011 01 54 g (0.2 mole) of 3-bromo-5-ehloro-2- hydroxybenzoic acid chloride and 53 g (0.27 mole) of 4-chloro-3-amino-benzoic trifluoride are heated to the boil for 6 hours in 800 ml of anhydrous xylene. After filtration of the still hot solution, it is left to stand to cool. Pale yellow crystal of 3-bromo-2'..5-dichloro-2- hydroxy-S'-trifluoromethyl-benzoic acid anilide, which is slowly added dropwise at temperatures between 20C v and 30C. After a reaction timeof 16 hours at 35C, filtration from the pyridine hydrochloride also formed is effected hot and the residue is recrystallized from ligroin. There are obtained 18.5 g (82% of theory) of 3- bromo-Z ,5.-dichro-5 trifluoromethyl-2-propionoxybenzoic acid-anilide of the melting point 1 17C and the First. a sodium cthylate'solution of 2.3 g (0.1 mole) of sodium in 200 ml of anhydrous ethanol is added to a suspension of 33.7 g (0.108 mole) of 2'-chloro-2 hydroxy-3,4-dinitro-benzoic acid anilide in 350ml of anhydrous acetonitrile. Thereafter, 11.9 g (0.15 mole) of chloroformic acid ethyl ester-in 50 ml of anhydrous acetonitrile are added dropwise. After a reaction time of 24 hours. centrifuging off from the sodium chloride formed is effected, the'solvent is distilled off in a vacuum and the oily residue is washed with methanol. 15

g (3471 of theory) of 2-chloro-3,4-dinitro-2- ethoxycarbonyl-oxybenzoic acid anilide of the melting 40 point 146150C are obtained.

EXAMPLES 4-5 7 The following compounds are prepared in a manner analagous to that of the above Examples 1-3.

are well washed w1th petroleum ether. are obtained in T a b l e a yield of 65.7 g (83% of theory) with the melting point Y 1 b. To a solution of 20 g (0.046 mole) of the product n of (a) in 400 ml of anhydrous benzene there are added w (JO-NH 3.7 g (0.046 mole) of pyridine. and a solution of 4.5 g

(0.05 mole) of propionyl chloride in ml of benzene Y Q-CO-R R Example Melting Number X Y R' R" n R I point C n Example I Table 1 C t1nued Meltmg Number X Y R R2 n R point C 23 Br Br OC H 2'.3'-C1 2 H 130 24 H N0 0C. ,H 4-Cl v 1 H 133 25 C1 C1 OC2H 2,3',5-C1 3 6'-0-C0-OC. ,H,, 163-65 26 Br Br OC4H 2,4'-C1 2 H 99-101 27 Br Br OCH2-CH(CHJ)-CH3 2'.4-C1 2 H 152 28 C1 C1 oCH 'CH CH -CH 2',4.6'-Br 3 H 136-3) 29 Br Br OCH 2',6'-CH, 2 H 161 30 Br Br CH 1 2'-Cl 1 5-CF;, 176-78 31 Br Br C2H5 2'-Cl l 5'-CF;, 136-37 32 C1 Br CH 2".6-CH 2 H 192-94 33 C1 Br OCH 2'.6-CH 2 H 158 34 C1 Br OC2H 25C] 1 5'-CF 9s 35 Cl Br C 1, r)2 2 H 166 36 C1 Br C H 2',6-CH(CH 2 H 155 37 C1 C1 CH 2',6'-CH CH., 2 H 169-70 38 C1 C1 C:H,-, 2.64CH(CH6)2 2 H 155 39 C1 C1 oC1-1 2'.6-CH(CH;,)- 1 2 1-1 144 40 C1 C1 CH 1 ,2'.6'-.CH 2 H 185-86 41 c1 c1 c rr, 2'.6H=r 2 H 155-56 42 C1 C1 OCH 2',6-CH;{ 2 H 153 43 C1 C1 CH 3 2-Cl 1 5'-CF 1, 152 44 C1 Cl OCH 2 Cl 1 5 '-CF =1 I29 45 Cl Br CH 2'.6' C- .s 2 H 179 46 Cl Br C H 2',6'-C2H5 2 H 169 47 Cl Bl 2 5 Y v 3 2 H 64-66 48 Cl Br OCH 2.6-CH(CH: 2 H 135-37 49 C(CH,-,)3 Br CH1, 3 2 H 21 l 50 C(CH:1)3 Br 001 3',5'-cF.-, 2 H 164 51 C(CHS):l Br OCH.l 2' c| 1 5'-CF 122-23 51 cnm Br CH 2'-Cl 1 5'-CF, 146 53 C CH Br CH 2',4'.6'-Br 3 H 195 54 C1 H OC H 2'-Cl l H 93-95 55 c1 H OCzHs l H 1 56 Br Br CH 3'.5 '-CF;, 2 H 173-74 57 H No C H In 1 4'-1'-10 -76 EXAMPLE 58 Table 2Continued r (Plant-dama 'in Y insects) Plutella test 30 Plutella risr Solvent: 3 parts by weight dimethyl formamide A d C f D f t c we compoun s oncentratlon 0 egree o Emulslfier. 1 part by welght alkylaryl polyglycol acme compound destrucfion th in in after To produce a suitable preparation of active com- 3 pound, 1 part by weight of the active compound is 35 0 Cl mixed with the stated amount of solvent containing the H stated amount of emulsifier and the concentrate is di- L. luted with water to the desired concentration. Cabbage leaves (Brassica oleracea) are sprayed with 40 01-1 C1 0:002 50 the preparation of the active compound until dew moist (B) U and are then infested with caterpillars of the diamondback moth (Plutella maculipennis). 0

After the specified period of time, the degree of de- (kmm) struction is determined as a percentage: 100% means 45 0 that all the caterpillars are killed whereas 0% means I that none of the caterpillars are killed. (1) C The active compounds, the concentrations of the ac- I 0.002 tive compounds, the evaluation time and the results can Br i 0( H CF be seen from the following Table 2: 0

Table 2 V C \/C-NH- Q 0.02

C1 0.000: 15 (Plant-damaging insects) is lir OC(.LH.-. Plutella test 1 i i Active compounds Concentration of Degree of a active compound destruction 0 in /r in 9? after ll 3 days I Cl CNH- Q 0.: IOU (H12 100 O 60 0.002 100 ll (1 0.0002 65 ,0H 0.02 100 O (A) 0.002 60 O 0,0002 0 6s 1| Br C NH 0.2 100 (ll (LUZ IOU 0.002 100 i Cl Br o C oCH..

( known O Table Z-Continued (Plant-d amaging insects) EXAMPLE 59 Phaedon larvae test Solvent: 3 parts by weight dimethyl formamide Emulsifier: 1 part by weight alkylaryl polyglycol ether v' To produce a suitable preparation of active compound. 1 part by weight of the active compound is mixed with the stated amount of solvent containing the stated amount of emulsifier, and the concentrate is diluted with water to the desired concentration.

' Cabbage leaves (Brussica oleraceu) are sprayed with Active compounds the preparation of the active compound until dripping wet and then infested with mustard beetle larvae (Phaedmrcoclzleariue).

After the specified periods of time, the degree of destruction is determined as a percentage: 100% means that all the beetle larvae are killed. 0% means that none of the beetle larvae are killed.

The active compounds, the concentration of the active compound. the times of evaluation and the results can be seen from the following Table 3:

Table 3 (plant-damaging insects) Phacdon larvae test Concentration of active compound Degree of destruction in -in/r after3days W I c1 C-NH- -Cl \OH (A) 0.2 100 (known) :i)2 u Br C-NH 0.2 100 0.02 100 (4) 0.002 100 O-CCH CH( .1): Br v cmcno2 "u Br C-NH 0.2 100 (5) 0.02 100 0.002 r00 o C- H-, CHlc nlz Br o CF. i C 0.2 100 7) 0.02 100 0.002 100 c cnz, CF,

Table 3 -Continued (plant-damaging insects) Phaedon larvae test Active compounds Concentration of- Degree of desactive compound" truction in in "/1 after 3 days E! 1 (l C-NH 0.2 100 s 0.02 100 0.002 l00 OC-C H, C Br n 0 CF ii Cl C--NH- 0.2 100 (9) 0.02 100 0.002 90 OCOCH Cl 0.0002 80 Br CF i Cl C-NH 0.2 100 (l0) 0.02 100 0.002 100 O-C-CH, Cl Br 0 EXAMPLE 60 of approximately 1030 cm., are sprayed with the preparation of the active compound until dripping wet. These bean plants are heavily infested with spider mites (Tetranyt'llus urticue) in all stages of development.

After the specified periodsof time, the effectiveness of the preparation of active compound is determined by counting the dead mites. The degree of destruction thus obtained is expressed as a percentage: 100% means that all the spider mites are killed whereas 0)? means that none of the spider mites are killed.

The active compounds, the concentrations of the active compounds, the evaluation times and the results can be seen from the following Table 4:

Table 4 Active compounds (plant-damaging mites) 'l'etranychus test Degree of destruction in Concentration of active compound (known) (plant-damaging mites) Tetranychus test Active compounds Concentration of active compound Degree of destruction in in 7: 7: after 2 days Cl C] o H Br CNH 012 so (23 o c- 0C,H.'-

Br o

i C-NH-- CI OCOC2H5 No Cl C! 0 ll c1 CNH O-C-OC2H5 o c 0c,i-| 0.2 80 :1 H ll CI 0 ll Br CNH Cl (26) 0.2 95 c oc,H,, 0.02 90 Br ii 0 ll Br C-NH c1 27) f :OCOCH2-CHCH3 0.2 9::

Br II I Br 0 H C] C-NH Br and scope of the present invention.

What is claimed is:

l. A 2-acyloxybenzoic acid of the formula:

Y CO-R in which R is alkoxy with up to 6 carbon atoms,

R is lower alkyl of l to 4 carbon atoms, trihalomethyl, halo, lower alkoxycarbonyloxy or lower alkanoyloxy with an alkyl moiety of up to 3 carbon atoms,

R is hydrogen, lower alkyl. trihalomethyl, lower alkoxy, lower alkylmercapto, halo, nitro or lower alkoxycarbonyloxy with up to 3 carbon atoms in any of the alkyl moieties,

n is l. 2 or 3, and

X is hydrogen and Y is nitro, or

X is bromine or tertiary butyl and Y is chlorine or bromine, or

X is chlorine and Y is chlorine or bromine, or hydrogen with R being alkoxy.

2. A compound according to claim 1 in which R is alkoxy with up to 4 carbon atoms; R is alkyl with up to 3 carbon atoms, trihalomethyl, chlorine. bromine cthoxycarbonyloxy or alkanoyloxy with an alkyl moiety containing up to 3 carbon atoms; and R is branched alkyl, alkoxy or alkylmercapto with up to 3 carbon atoms. trihalomethyl, chlorine, bromine or nitro.

3. A compound according to claim 1, wherein. such compound is 3-bromo-5-chloro-3,5-bistrifluoromethyl-Z-methoxycarhonyloxy-benzoic acid anilide of the formula 7 compound is 2', 3, 4, 5, 5'-pentachloro-2-ethoxycarbonyloxybenzoic acid anilide of the formula 5. A compound according to claim 1, wherein such ll 01 c-rm c1 (2 Q o wherein o-c-oc n, c1 8 20 compound is 2-ch loro-3,4-dinitro-2-ethoxycarbonyloxy-benzoic acid anilide of the formula 6. A compound of the formula:

R is lower alkyl to l to 4 carbon atoms; X and Y are chloro or bromo; or X is chloro and Y is hydrogen; each 0 is independently halo or nitro and n is an 

1. A 2-CYLOXBENZOIC ACID OF THE FORMULA:
 2. A compound according to claim 1 in which R1 is alkoxy with up to 4 carbon atoms; R2 is alkyl with up to 3 carbon atoms, trihalomethyl, chlorine, bromine, ethoxycarbonyloxy or alkanoyloxy with an alkyl moiety containing up to 3 carbon atoms; and R3 is branched alkyl, alkoxy or alkylmercapto with up to 3 carbon atoms, trihalomethyl, chlorine, bromine or nitro.
 3. A compound according to claim 1, wherein such compound is 3-bromo-5-chloro-3'',5'' -bis-trifluoromethyl-2-methoxycarbonyloxy-benzoic acid anilide of the formula
 4. A compound according to claim 1, wherein such compound is 23, 4'', 5, 5''-pentachloro-2-ethoxycarbonyloxybenzoic acid anilide of the formula
 5. A compound according to claim 1, wherein such compound is 2''-chloro-3,4''-dinitro-2-ethoxycarbonyloxy-benzoic acid anilide of the formula
 6. A compound of the formula: 